This standard pertains to unannealed austenitic stainless-steel pipe that is straight-seam or spiral-seam welded, 1/2 in. (13 mm) in nominal diameter and larger, and that is intended for the transmission and distribution of water and for use in other water-supply system facilities. The purpose of this standard is to provide purchasers, manufacturers, and constructors with the minimum requirements for stainless-steel pipe, 1/2 in. (13 mm) and larger, including fabrication and testing requirements.